Wood-sawing machine



(No Model.) f 2 ls11ee'. shee1; 1.- l A. HAZEWINKEL. WOOD SAWING MACHINE N0.547,433. Patented oct. 8, 1895.

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(No Model.) Y 2 sheets-sheen 2. A. HAZEWINKEL. WOOD SAWING MCHINE.

No. 547,433. Patented oet. 8, 1895.

Ntra Tn'rns PATENT risica.

wooD-sAwlNe MACHINE. j

SPECIFICATION forming part of Letters Patent No. 547,433, dated october s, 1895. Application filed November 12, 1894. Serial No. 528,571. (No model.)

To all whom. may concern..-

Be it known that I, ALBERT I-IAZEWINKEL, a citizen ofthe United States, residing at-'Benton Harbor, in the county of Berrieu and State of Michigan, have invented certain new and 'useful Improvements in food-Sewing Machines; and I do hereby declare the following to be a full, clear, and'exact description of the invention, such as will*enable others skilled in the art to which it appertains to make and use the same.

This invention relates to wood-sawing machines; and it consists of a new and useful machine comprising a horizontal band-resaw for the purpose of sawing bevels and'wide planks of all kinds, mechanism for actuating and adjusting the same and its supports, for operating and adjusting the machine, and in the general'construction, as hereinafter set forth.

In the accompanying drawings, Figure 1 represents a front elevation of my improved machine.' Fig. 2 represents a left-hand end elevation thereof. hand end elevation of the lower portion of the machine, which is shown as broken away and partly in section. Fig. 4 represents an enlarged detail View, in perspective, of aportion of the machine.

A represents the base or main frame of thev machine.

.which are passed screws VV,whereby said support B2 may be adjusted to alignthe saw B3,

which, as willlbe seen, is horizontally arranged around the two bandwheels independently of the slide or saw-tightener C. The sawtightening slide C has bevel-faced feet or flanges 6, which embrace and slide along the bevel-faced ribs or ways 7. 8 represents a Fig. 3 represents wright-- block having upwardly-extending prongs 9 or .their equivalent, which engage with the under face of the bottom of the slide C, and 10 represents an adj usting-screw having bearing in said block andprovided withahand-wheel M, by turning which latter in either direction said screw operates to longitudinally adjust ,said block 8 and the thereto-connected slide C, support B2, and bandewheel H', and thereby adjust the tension on -the band-saw B3,

I represents a lever-having an eyed upper end 11, connecting with the screw.10 and rockingly journaled at 12 in ears 13, said leadjustable bearing by means of a nut 15 on a screw 16, an elastic cushion 17 being interposed between said'nut 15 and the lower end of said lever I to prevent jarring 'and main- 4tain theA proper `tension on the saw. i

F represents a verticallyfdisposed fram midway between the band-wheels, within ory on which the frames or carriers carrying the plank-feeding rollers and the mechanism for actuating the same are supported.

F represents the upper frame or carrier, within which the upper series of plank-feeding rollers20-of.which there may be any desired number-are journaled, the journals of said rollers 20 having bearing in the bottom {ianges or legs a of said frame and being held in place by boxesb, as shown.

- c represents arms mortised in the vertical sides d of the frame F, with which arms c are adj ustably connected by hand-screws e or otherwise slotted slides or connecting-rods L, which'at their lower'ends are connected with a pair of eccentric-disks K.

F2 represents the'lower frame or carrier, within which the lower series of feed-rollers 19-of which there may be any desired numben-are journaled. 'This roller carrying frame F2 has lateral arms f, which haveslide bearing, by means ofehandscrews g'or their ver I having an eyed lower end-14, which has F2 can be readily adjusted to permit olf the A rollers feeding timber of varying thicknesses.

i A J represents-weights connected by connecting-rods t'with thefeccentric-disks K, the fu nction ofv which is to 'draw theroller-carrying frames toward each other and exert pressure upon the upper' and lower series of feed-rollers, so as to insure the frictional contact of said rollers with the timber to be fed and the proper feeding of said timber.

. j represents a vertical screw, which is operated by a hand-wheel O and has bearing in a lip or ear kand passes through the cross-bar f of and into engagement at its lower end with the upper rollercarrying frame F', said screw 7' working in a nut S, unturnably seated in a' slot m, so that as said screw]l is turned in the one direction or the other the frame F and the upper series of feed-rollers carried thereby will be correspondingly either raised or lowered. v7 represents another adjustingscrew, which has bearing in a box o, attached to the face of the base A and has bearing at its upper end against the under portion of the lower roller-carrying frame F2, O2 representing a hand-wheel for operating said screw, and p a nut which is-,located on said screw, butwith one face in contact with the face of the base A, so that said uut will remain stationary and form a stationary bearing' for said screw, the result being that as said screw a is turned in the one direction or the other it will either draw down or raise the rollercarrying frainell.v i

q represents slots arranged vertically inthe respective legs d of the frame F, and 1- represents thumb-screws or. their equivalents, by ineansof which, in connection with said slots l`(l, said frame F is connected with saidbase Afl-with capability of vertical adjustment thereon. l

UU represent hand-screws having bearing inV ears S, extending from the base A, by

means of which said frame F may be verti-4 cally adjusted.

17 represents thelink-chain, which conjnects anddrives the timber-feeding'rollers 19 and 2.0.l This chain, asY clearly shown in'Fig. 2 of vthe drawings, engages with cogs 13. on

- the outwardly-extending portion of one end 45.l

ofthe-journals ofsaid lower rol1ers19 and upper lfeed-rollers20, the upperend of said chain, which isendless, passing around acog '21, journaled in-an o'set 22 of the chaintightener,Ewhile its lower end passes around anothercog-wheel 23,.journaled on the shaft 2,3?,r..Thephain-tightener E has vertical slide t lbearing-,ejn-V -the frame F and is provided with .a vertical screw N, by turning' which in yeither-direction said tightener may be either Araisedforlowered toeithezl tighten the con- .nee'tion ofthe .chain .with thecogs-- on .the-

`=f,eed-1ro11ers.orcloosen such connection, and 'thusregula-te-Hthe rotation of said rollersor,

ablyT mounted on said frame and having connected therewith one end of a rod 2G, which passes transversely through the base A, the front end of said rod 26 being connected at 27 with a lever 23, which is pivotally jonrualed at 29 in ears 30. By reciprocating this lever 23 the sliding box 24 and the transverse shaft 23n are reeiprocated transversely of lthe machine. On the front end of the shaft 23 is mounted a frictiondisk 3l, which contacts with a friction-wheel on the shaft 23h. Motion being communicated to the shaft 23 through abelt or band (not shown) passing over the pulley 33 on the aforesaidvshaft 23 and the pulley 34 on the shaft 2 of the 'band-wheel Il said ,frictiondisk 3l will be revolved, and when said friction-disk 3l is in contact with the frictionwheel 3D motion will thereby be communicated to the sprocket-chain-actuating shaft' 37 represents a rod having end bearing in a pair of boxes 38 and 39, to be presently 'de-- scribed, upon which rod 37 is mounted, with capability of-sliding therealong, a slide-block 40, which is connected with an ordinary olfset 41'on one side of the friction-Wheel 32,. and 42 represents a lever attached at 43 to said slide-block and at its rear end pivotally connected, as at 44, to a strap 45, which is hung at 46, with capability of vertical adjustmentthereon,on the base A. By turning this lever 42 laterally the slide-block 40 and the thereto-connected friction-wheel 32 are correspondingly laterally' adjusted, so as to vbring said friction-wheel into frictional contact with different portions of the face of the friction-disk 3l, whereby the speed at which the shaft 23b and, consequently, of the sprocket-chain and of the feed-rollers is regulated. 47 represents a thumb-screw or its equivalent, by means of which the slide-block loo IIC

40 and the friction-wheel 32 connected therewith are clamped in adjusted position. The v,

boxes 3S and 39, within which the shaft 23 and the rod 37 are journaled,are peculiarlyv vwellas straight sawing-ofv lumber. v'lheb'ozr 38 is secured to the base -A,'so as to loe-vertically adjusted'thereon, Whiie'theybo'x 89rha's rotatablebearitrg-supportat 39"n'said base` 1A.' f fN'ew, wheny it -i-s desiredtosaw'lumber'finv thefffform of 'nevels .instead ofllstraight, the

thumb-screws r r' are loosened, the handwheel U is then loosened, and the handwheel U raised to the desired position.` This action brings the frame F, which has rockingbearing at its bottom 4on the pin T, and the rollercarriers and rollers to a position of angularity or out of the horizontal, so that t-he boards to be sawed will be presented to the saw at sut'n ficient angularity toinsure theirbein'g sawed in bevel form. The box 38 is at the same time raised to a Adistance corresponding with the distance to which one leg of the frameF is raised, which act, as the box 39 turns on its vpivot, brings the sprockets 'in alignment` -The several nuts are then tightened and thefv several parts of the mechanism are then-fin position to saw lumber in bevel form.

By means of the construction and arrangement of parts hereinbefore described and the adjustability of the frames supporting and carrying the feed-rollers and the adj usta vbility of the chain carrying and operating devices and .of the saw-support saws of varying lengths .can be readily employed, the alignment and adjustment of the saw readily accomplished, a saw horizontally arranged used, and boards ofl irregular shape and of great width sawed either in straight vform or in the form of bevels. The feed-rollers are automatically adjustable to boards of. varying thickness and are always maintained in frictional contact with the boards aud thus secure'the positive and regular feed thereof to the saw.

Having thus described my invention, what` 1. In a sawing machine, a vertical frame having pivotal bottom support and independently vertically-adjustable and side 'supports to adapt said frame to be bothvertically and an gularly adjusted, a lower feed-roller carrier having vertically adjustable bearings or sup- ,ports in said frame, an adjusting screw adapted to raise and lower said carrier, an upper feed-roller carrier having vertically-ad-4 justable side bearing supports, an adjusting screw and n ut connected with said upper feedn roller carrier to vertically adj ust the same and admit of the independentl and automatic vertical adj ustment of said carrier, substantially vas and for the purpose set forth.

2. In a sawing machine, a vertical frame,

vupperand lower feed-roller carrying frames' carried by said vertical frame and vertically adjust-able independently thereof, eccentrics connected 4with..tsaid'froller scarriersnandf.

weights and connecting rods connectedtsilith said eccentrics for weighting and drawing the v rfeed-rollers to their work,and feed-rollers yjournaled in said. carrierssubstantially as 1 and for the purpose set forth.'=`

ln a sawing machine, a. frame havingvertically-depending x-legs i each having eared l. lower .endsan'df a' pair of vertical slots, thumb jendbearingagainstthe base of the machine screws" engaging withVsaid-ears and having 'whereby either side of said frame. may be inj ing pivotalbearing Von the base ofthe mafchine andthe other having vertical adj ust! dependently adjusted vertically to support saidframe at any angle, screws passed transversely through one pair of said slots into eugagement with the base to clamp said frame in its vertically and angularly adjusted positions, upper and lower roller carriers carried by said frame and having outwardly-extend ing arms having vertically adj ustable bearing independently of the frame by screws in slotted side connections, feed rollers journaled in said carriers, sprocket wheels mounted on one end of said feed rollers, guideand actuating sprockets having bearing support above and beldw said roller-carriers, respectively, an v endless sprocket chain connecting with said sprockets, a vertically-adjustable tightener l connected with the upper guide sprocket and adapted to both tighten and loosen the chain connection withl the sprockets on the feed rollers, and a shaft connected with suitable power and with the lower sprocket of the series for actuating said sprocket chain, substantiallyas and for the purpose set forth.

4. In a sawing machine, a vertical frame, upper and. lower roller-carriers carried thereby and adapted to be independently vertically adjustable, feed-rollers journaled in said carriers, sprockets mounted on said roller jour'- nals at one enid, a Vchain tightener and loosener, a chain carrying sprocket having bearing in lsaid tightener, a chain-operating shaft having bearing in the base of the machine, a chain-operating sprocket mounted on said shaft, a friction-wheel mounted on said shaft, a friction disk, a transverse shaft connected with said friction disk, a frame located at the rear of themachine a boxhavin g slide bearingr in said frame and connected with said trans- IOO verse shaft, a rod and leverconnected with said "sliding box, and a lever and slide connected with said friction wheel, substantially as and for the-purpose set forth.

5. In a sawing machine, al vertical frame having capability of both vertical and angular adjustment on the base of the machine, upper andV lower feed-roller carriers' supported in IIO.

said frame and having independent vertical Y adjustment, feed-rollers journaled in said carriers, sprockets mounted on said roller journals, an endless'sprocket chain, guide and operating sprockets for said chain, a chain tightener, a chain operating shaft, bearing 'boxes for said chain-operating shaft, one of said boxeshaving vertically-adjustable bearing in the base of themachine and the 'other having pivotalbearing 6. In a sawing machine, the combination -with the vertically and angularly-adjustable roller-carrying frame, roller-carriersv and rollers, sprockets and sprocket chain engaged therewith, of a pair o f journal 'boxes,`one havment thereon, a shaft carrying vthe lower chain?v actuating sprocketand having end bearing in s'aid boxes, and suitable means for actuin said base, substantially as l and for the purpose set forth'.V f.

-7. In a sawing machine, the combination with the roller carrying frame, roller-car riers, rollers, roller-actuating sprockets and sprocket chain of a sprocket-chainfactuating shaft extending transversely through the base of the machine, a. framelocatedat the rear of the machine,a box having slidey bearing on' said frame and aordiug journal bearing for the rear end'of said shaft, a rod and a' lever connecting with said box for reciprocating the same and the shaft, a friction disk mounted on the front end of said shaft, a shaft located `at the front of and parallel with thebase of the machine and connected with the sprocket chain, aifriction Wheel carried by said latter lshaft. and contacting with the friction disk ou the other shaft, substantially as and for the purpose'set forth.

S. In a sawing machine, a base, a vertical frame having depending legs each independently adjustable vertically on said base, and

upper and lower feed-roller-carrying frames carried by said vertical frame and vertically adjustable independently thereof whereby said vertical and feed-roller carrying frames are adapted to beang'ularly adjusted relatively to the saw, eccentrics connected with said roller-carriers, weights and connecting rods connected with said eccentrics for weigh t-,.

ing and drawing the feed-rollers to their work, feed-rollers journaled in said carriers, a pair of band wheels, one having stationary support on the base and the other having;` horizontal adjustable support on said base to and from the roller-carrying frames, and a horizontal band saw carried 'by said band wheels, substantially as Jand for the purpose set forth. In testimony whereof I affix my signature in presence of two witnesses. [A

ALBERT I-IAZEWINKEL.

Witnesses:

THOMAS T. WooD, v HENRY S. KELLEY. 

